This is a simplified flute and piano duet I wrote of the song "Pure Imagination" from the 1971 film "Willy Wonka and the Chocolate Factory," sung by Gene Wilder as Wonka. Since its release, the song has been covered and remixed hundreds of times by a wide variety of artists. The original song was not popular when it was first released. The film itself was not a blockbuster and other songs from the soundtrack performed better. It was not until the movie began appearing on television reruns in the 1980s that the film and "Pure Imagination" became more well known. Although the original song never charted, some cover versions have done so.

In the week following Wilder's death in 2016, the song rose in streams and sales by more than 1000%. The song was featured in television, radio, and social media tributes to Wilder.[4][6] While it was absent from the 2005 film adaptation Charlie and the Chocolate Factory, the song was featured in the 2023 prequel film Wonka, both in its promotional materials and the film itself, sung by Timothée Chalamet as Wonka.

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Information taken from Wikipedia
This arrangement © me and me alone
Original music composed by Anthony Newley and Leslie Bricusse
Willy Wonka and the Chocolate Factory © Paramount. Wopler Pictures, the Quaker Oats Company, and everybody else who owns the rights, and based on the book "Charlie and the Chocolate Factory" by Roald Dahl (who was very unhappy with the film).
Wonka (the 2023 film) © Warner Bros. Pictures, Village Roadshow Pictures, The Roald Dahl Story Company, Heyday Films, and everybody else who owns the rights, and serves as a prequel to the original film.

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Pure Imagination: https://www.youtube.com/watch?v=A-DuOmA75lI (original sung by Gene Wilder)
https://www.youtube.com/watch?v=O9Hngn4Zcbk (2023 version by Timothée Chalamet)